- #1
baby_1
- 159
- 15
Hello
i have some questions about to obtain finite line charge equation.
as you know the equation of a finite line charge equation is
now i want to demonstrate this equation.
at first i assume that charge element on z>0 so
1-
i solve the problem but my final answer is different from the above answer.it seems the integral limitation give me a (-) to statement.so i change it in next step and find the correct answers
2-
as you see that answer is completely correct.
now here i have two questions
1-how can we define integral limitation?from low value to high?
2-does integral limitation change where we get charge element?
try the next steps
now i assume that charge element is z<0 so i resolve the problem
3-
as you see the answer is different from the correct answer so i assume that i get wrong intergal limitation and resolve in next step
4-
again the answer is wrong from correct.
where is my problem?
1-now how can we define integral limitation?
2-is charge element situation important?
3-why we get different answers?
any help appreciated
i have some questions about to obtain finite line charge equation.
as you know the equation of a finite line charge equation is
now i want to demonstrate this equation.
at first i assume that charge element on z>0 so
1-
i solve the problem but my final answer is different from the above answer.it seems the integral limitation give me a (-) to statement.so i change it in next step and find the correct answers
2-
as you see that answer is completely correct.
now here i have two questions
1-how can we define integral limitation?from low value to high?
2-does integral limitation change where we get charge element?
try the next steps
now i assume that charge element is z<0 so i resolve the problem
3-
as you see the answer is different from the correct answer so i assume that i get wrong intergal limitation and resolve in next step
4-
again the answer is wrong from correct.
where is my problem?
1-now how can we define integral limitation?
2-is charge element situation important?
3-why we get different answers?
any help appreciated